general math MCQ #1417

Find the values of x and y by solving the system of equations: 2x+y=20 and 6x-5y=12.

general math MCQ #1417

  1. Question 1

    Q1. Find the values of x and y by solving the system of equations: 2x+y=20 and 6x-5y=12.

    • A) x=5, y=6
    • B) x=7, y=6
    • C) x=4, y=5
    • D) x=9, y=8

    Answer: x=7, y=6

    Explanation: From 2x+y=20, y=20−2x. Substituting into 6x−5y=12: 6x−100+10x=12 → 16x=112 → x=7, y=6.